Trachyteuthis
{{short description|Genus of fossil cephalopod}}
{{Taxobox
| fossil_range = {{fossil range|Callovian|Cenomanian}}
| image = Reconstruction of trachyteuthis hastiformis.jpg
| image_caption = Reconstruction of Trachyteuthis hastiformis
| image2 = Eichstätt Trachyteuthis hastiformis.jpg
| image2_caption = Trachyteuthis hastiformis, Jura Museum
| regnum = Animalia
| phylum = Mollusca
| classis = Cephalopoda
| subclassis = Coleoidea
| superordo = Octopodiformes
| ordo = incertae sedis
| familia = Trachyteuthididae
| familia_authority = Naef, 1922
| subfamilia = Trachyteuthidinae
| subfamilia_authority = Naef, 1921
| genus = Trachyteuthis
| genus_authority = Meyer, 1846
| subdivision_ranks = Species
| subdivision =
- T. chilensis
Riccardi, 2016{{Cite journal|author=Alberto C. Riccardi |year=2016 |title=Callovian and Oxfordian (Jurassic) teuthids (Coleoidea, Cephalopoda) from Chile |journal=Journal of Paleontology |volume=90 |issue=5 |pages=910–922 |doi=10.1017/jpa.2016.110 |bibcode=2016JPal...90..910R |s2cid=132913234 }} - T. covacevichi
Fuchs, 2008 - T. hastiformis
(Rüppel, 1828) - T. latipinnis
(Owen, 1855) - T. nusplingensis
Fuchs, 2007 - T. teudopsiformis
Fuchs, 2007
}}
Trachyteuthis is a genus of extinct octopodiform cephalopods, comprising six species: T. hastiformis, T. latipinnis, T. nusplingensis, T. teudopsiformis,
{{cite journal
|author1 = Fuchs, D.
|author2 = Engeser, T.
|author3 = Keupp, H.
|year = 2007
|title = Gladius shape variation in coleoid cephalopod Trachyteuthis from the Upper Jurassic Nusplingen and Solnhofen Plattenkalks
|url = http://www.app.pan.pl/archive/published/app52/app52-575.pdf
|journal = Acta Palaeontologica Polonica
|volume = 52
|issue = 3
|pages = 575–589
|url-status = live
|archiveurl = https://web.archive.org/web/20120323030110/http://www.app.pan.pl/archive/published/app52/app52-575.pdf
|archivedate = 2012-03-23
{{cite journal
|author1=Fuchs, D. |author2=Schultze, H.-P. |year=2008
|title=Trachyteuthis covacevichin. Sp., a Late Jurassic Palaeopacific coleoid cephalopod
|journal=Fossil Record
|volume=11 |issue=1 |pages=39
|doi=10.1002/mmng.200700012
|doi-access=free|bibcode=2008FossR..11...39F }} and T. chilensis.
Taxonomy
The taxonomic placement of Trachyteuthis is uncertain. Though often assigned to the order Vampyromorphida, the discovery of fossilised Trachyteuthis beaks in the Upper Jurassic limestone of Germany suggests a close phylogenetic relation to the Octopoda.
{{cite journal
|author1=Klug, C. |author2=Schweigert, G. |author3=Dietl, G. |author4=Fuchs, D. |year=2005
|title=Coleoid beaks from the nusplingen Lithographic Limestone (Upper Kimmeridgian, SW Germany)
|journal=Lethaia
|volume=38 |issue=3 |pages=173
|doi=10.1080/00241160510013303
|bibcode=2005Letha..38..173K }}
{{cite journal
|author1=Fischer, J. |author2=Riou, B. |year=2002
|title=Vampyronassa rhodanica nov. gen. nov sp., vampyromorphe (Cephalopoda, Coleoidea) du Callovien inférieur de la Voulte-sur-Rhône (Ardèche, France)
|journal=Annales de Paléontologie
|volume=88 |issue=1 |pages=1
|doi=10.1016/S0753-3969(02)01037-6
|bibcode=2002AnPal..88....1F }} It is clear that it does at least belong in the Coleoidea. It is thought to be very closely related to Teudopsis.
Distribution
Fossils are scarce but have been reported from the Kimmeridge clay of the UK; the Solnhofen limestone of Germany, Jurassic deposits in Antarctica,
{{cite journal
|author = Doyle, P.
|year = 1991
|url = http://palaeontology.palass-pubs.org/pdf/Vol%2034/Pages%20169-178.pdf
|title = Teuthid cephalopods from the Upper Jurassic of Antarctica
|journal = Palaeontology
|volume = 34
|issue = 1
|pages = 169–178
|url-status = usurped
|archiveurl = https://web.archive.org/web/20120324051634/http://palaeontology.palass-pubs.org/pdf/Vol%2034/Pages%20169-178.pdf
|archivedate = 2012-03-24
History
File:Trachyteuthis hastiformis fossil.jpg structure of T. hastiformis]]
First described in 1773 as the remnants of a fish, Trachyteuthis was considered comparable to a Sepia cuttlebone by Rüppell in 1829. A separate genus was erected for the material in 1846 by Meyer. English material discovered in 1855 was termed Coccoteuthis latipinnis; this was later synonymised with the identical Solnhofen deposits. A 2007 survey of museum collection established that there were ground for the erection of three species within the genus.
References
{{Reflist}}
External links
- [https://web.archive.org/web/20070928200709/http://www.thomas-machold.de/html/trachyteuthis.html Fischerverlag Jena aus Adolf Naef "Die Fossilen Tintenfische" 1922]
- [http://sn2000.taxonomy.nl/Taxonomicon/TaxonTree.aspx?id=157715 The Taxonomicon: Order Vampyromorphida]
- [https://web.archive.org/web/20080305014742/http://www.fmnh.helsinki.fi/users/haaramo/Metazoa/Protostoma/Mollusca/Cephalopoda/Octopodiformes/Vampyromorpha.htm Mikko's Phylogeny Archive: Vampyromorpha]
{{Taxonbar|from=Q4119964}}